Percolation in transparent and conducting carbon nanotube networks

被引：976

作者：

Hu, L ^{[1
]}

Hecht, DS ^{[1
]}

Grüner, G ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

来源：

NANO LETTERS | 2004年 / 4卷 / 12期

关键词：

D O I：

10.1021/nl048435y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ultrathin, uniform single-walled carbon nanotube networks of varying densities have been fabricated at room temperature by a vacuum filtration method. Measurements of the sheet conductance as a function of nanotube network density show 2D percolation behavior. In addition, the network transparency in the visible spectral range was examined and the results are in agreement with a standard thin-film model: fits to the standard theory indicate sigma(ac) = sigma(dc) for transmission measurements at 550 nm. Transmission measurements also indicate the usefulness of nanotube network films as a transparent, conductive coating. Avenues for improvement of the network conductance are discussed.

引用

页码：2513 / 2517

页数：5

共 31 条

[1] A compact wireless gas sensor using a carbon nanotube/PMMA thin film chemiresistor [J].

Abraham, JK ;

Philip, B ;

Witchurch, A ;

Varadan, VK ;

Reddy, CC .

SMART MATERIALS & STRUCTURES, 2004, 13 (05) :1045-1049

[2] Quasi-Langmuir-Blodgett thin film deposition of carbon nanotubes [J].

Armitage, NP ;

Gabriel, JCP ;

Grüner, G .

JOURNAL OF APPLIED PHYSICS, 2004, 95 (06) :3228-3230

[3] DC and AC conductivity of carbon nanotubes-polyepoxy composites [J].

Barrau, S ;

Demont, P ;

Peigney, A ;

Laurent, C ;

Lacabanne, C .

MACROMOLECULES, 2003, 36 (14) :5187-5194

[4] Flexible nanotube electronics [J].

Bradley, K ;

Gabriel, JCP ;

Grüner, G .

NANO LETTERS, 2003, 3 (10) :1353-1355

[5] Percolation-dominated conductivity in a conjugated-polymer-carbon-nanotube composite [J].

Coleman, JN ;

Curran, S ;

Dalton, AB ;

Davey, AP ;

McCarthy, B ;

Blau, W ;

Barklie, RC .

PHYSICAL REVIEW B, 1998, 58 (12) :R7492-R7495

[6]

Dressel M., 2002, ELECTODYNAMICS SOLID

[7] Extraordinary mobility in semiconducting carbon nanotubes [J].

Durkop, T ;

Getty, SA ;

Cobas, E ;

Fuhrer, MS .

NANO LETTERS, 2004, 4 (01) :35-39

[8] High-κ dielectrics for advanced carbon-nanotube transistors and logic gates [J].

Javey, A ;

Kim, H ;

Brink, M ;

Wang, Q ;

Ural, A ;

Guo, J ;

McIntyre, P ;

McEuen, P ;

Lundstrom, M ;

Dai, HJ .

NATURE MATERIALS, 2002, 1 (04) :241-246

[9] Electrical properties of single-wall carbon nanotube and epoxy composites [J].

Kim, B ;

Lee, J ;

Yu, IS .

JOURNAL OF APPLIED PHYSICS, 2003, 94 (10) :6724-6728

[10] Langmuir-Blodgett films of single-wall carbon nanotubes: Layer-by-layer deposition and in-plane orientation of tubes [J].

Kim, Y ;

Minami, N ;

Zhu, WH ;

Kazaoui, S ;

Azumi, R ;

Matsumoto, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2003, 42 (12) :7629-7634

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